Stovepipe.



N0. 806,544. PATENTED DEG. 5, 1905.

A. A. KINNB.

STOVEPIPE.

APPLICATION HHB Nov.1s, 1904.

mmwf BMWM/ IINITED STATES PATENT oEEIoE.

Specification of Letters Patent.

Patentea'nee. 5, 1905.

Application filed November 18, v1904. Serial No. 233,235.

To all whom t may concern:

Be it known thatI, ALFRED A. KINNE, of

Minneapolis, Hennepin county, Minnesota,-

have invented certain new and useful Improve- .ments inStovepipes, ofwhich the following is a specification. y

My invention relates to stovepipes, and particularly to the lj-jointstherefor;l and the object of the invention is to provide a joint that isseparable to allow a number of them tobe nested or placed one within theother for convenience in transporting them fromplace to place. 'j y AfurtherA object is to provide a T-'joint that iseasilyV and quickly madeup and one that comprises separable parts which can be quiekly securedtogether or Separated,as desire Other objects of the invention willappear from the following detailed description.

, The invention consists generally in various constructions andcombinations, all as hereinafter described, and particularly pointed outin the claims.

' Innthe accompanying, drawings, forming part of this specification,Figure l is an elevation of 'a T-jointA embodying my invention.

. Fig. 2 is a fragmentary sectional view showingthe manner of securing'the parts of the jointy together. Fig. 3 `isr a view showing flanges orlips provided at the point of intersection of the two members of thejoint. Fig. l is a detail view illustrating more clearly the positionand shape of the lips or flanges on the sections of the joint. i

In the drawings, 2 represents a section of rpipe cylindrical in form,having one longitudinal edge folded in to receive the oppositelyfoldedlongitudinal edge to form the seam 3. The edges are locked together andthe seam is madetight by drawing thefolded edges in opposite directions;but when the sections of the joint are Separated the pipe may be openedup lengthwise by pressing thereon to separatek the edges one from theother at the seam, and

when that has been done a number of other similarly-opened pipe-sectionsmay be inserted within the first-named one, forming a nest that willordinarily accommodate ten or twelve sections and make a compact bundlethat can be easily shipped from place to place without danger of itsbeing crush ed or broken. Ordinarily takes a high class, is bulkythoughcomparatively light in weight, and cannot :be packed with anydegree of economy as regards space in the freight-car or other carrier.This is particularly true of the T-joint, which is of.

such irregular shape thatit is even more diiicult than-an ordinarystraight pipe to pack and ship. By providing a T-joint that is capableofbeing nested I am able to ship the joints in compact form at a lessexpense and without danger of their being damaged.

The pipe 2 is provided on one side with an opening 4, and a lip orflange 5 is formed around the edge of said opening and adapted to engagewithvand make a close-fitting joint with a flaring lip 6 on the otherpipe-section 7 ofthe joint, the end of which is of course hollowed outto t the curved wall of the pipe 2 and cover the opening therein. Thissection 7 is provided at the end with tongues 8 and 9, that embrace thepipe-section 2, and the end 9 has a shoulder v10, that bears upon theseam 3 and prevents thefolded edges composing said seam from becomingaccidentally separated. Stove-bolts 11, having nuts 12, are provided inthe ends 8 and 9 of the pipe-section7 and. passA through it and throughthe wall of the pipe 2 and hold them securely together and draw the lips5 and 6up into close contactl with one another to insure a tight jointbetween the pipe-sections. The

longitudinal edges of the section 7 are folded in thel same manner asdescribed with reference to the pipe 12,-and said edges are preventedfrom separating when the joint is in use by the next section of pipe,that Ets within the section 7.

' adapted to interlock toform a seam, said sectionV having a side holeor opening, a'second pipefsection having one end fitting the curvedsurface of said first-named section and covering said side hole, andsaid end lapping over said 'seamand having a .shoulder to engage thesame and prevent the accidental Separation of said folded edges,andbolts securing said sections together.

2.- A sheet-metal Tjoint comprising a pipe.

IOO

section having a side hole or opening and folded longitudinal edgesadapted to interlock and form a seam, saidl edges being separable onefrom the other to permit nesting of a series of sections, a secondpipe-section having one end fitting the curved surface of saidfirst-named section and covering said hole, and said second sectionhaving interlocking longitudinal edges that are separable one from IOthe other` to allow nesting of a series of said second sections, andmeans for securing the end of said second section to the curved surfaceof said first-named section, substantially as described.

In Witness whereof I have hereunto set my I5 hand this 14th day ofNovember, 1904.

ALFRED A. KINNE.

Witnesses:

RICHARD PAUL, C. MACNAMARA.

